The Kenneth S. Pitzer Papers, 1915-2000, consist of correspondence, writings, reports, and research materials documenting Pitzer's career in the field of theoretical chemistry from the 1930s until his death in 1997. The bulk of the collection is made up of correspondence, research materials, and writings relating to his pioneering work in methods for calculation of thermodynamic properties of complex molecules. Also included are materials relating to Pitzer's work for the United States Government, his private sector research and consulting, and a small amount of biographical material.

Kenneth S. Pitzer was born in Pomona, California on January 6, 1914, the son of noted philanthropists Russell K. and Flora Pitzer. He attended the California Institute of Technology, where he received a B.S. in chemistry in 1935 and completed his Ph.D. at the University of California, Berkeley in 1937 under the direction of distinguished chemist Wendell M. Latimer.

Number of containers: 42 cartons, 2 boxes, and 1 oversize folder. Linear feet: approx. 53

Copyright has been assigned to The Bancroft Library. All requests for permission to publish or quote from manuscripts must be submitted in writing to the Head of Public Services, The Bancroft Library, University of California, Berkeley, CA 94720-6000. Permission for publication is given on behalf of The Bancroft Library as the owner of the physical items and the copyright. Copyright restrictions also apply to digital representations of the original materials. Use of digital files is restricted to research and educational purposes.

Collection is open for research.